Source : Webster's Revised Unabridged Dictionary (1913)

Overbear \O`ver*bear"\, v. i.
   To bear fruit or offspring to excess; to be too prolific.

Overbear \O`ver*bear"\, v. t.
   1. To bear down or carry down, as by excess of weight, power,
      force, etc.; to overcome; to suppress.

            The point of reputation, when the news first came of
            the battle lost, did overbear the reason of war.
                                                  --Bacon.

            Overborne with weight the Cyprians fell. --Dryden.

            They are not so ready to overbear the adversary who
            goes out of his own country to meet them. --Jowett
                                                  (Thucyd. )

   2. To domineer over; to overcome by insolence.

Source : WordNet®

overbear
     v 1: overcome; "overbear criticism, protest, or arguments"
     2: bear too much
     3: contract the abdominal muscles during childbirth to ease
        delivery [syn: {bear down}]
     [also: {overborne}, {overbore}]